An Encylopedia Britannica Company

one–upmanship

1 ENTRIES FOUND:
one–upmanship /ˌwʌnˈʌpmənˌʃɪp/ noun
one–upmanship
/ˌwʌnˈʌpmənˌʃɪp/
noun
Britannica Dictionary definition of ONE–UPMANSHIP
[noncount]
: behavior in which someone tries to get an advantage by doing, saying, or having better things than someone else